Detect Meta Ads spend anomalies and creative fatigue with OpenAI and Slack
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 54 nodes and runs on a schedule (cron 0 9 * * *) (plus 2 other triggers). Along the way it connects Slack, Google Sheets, OpenAI Chat Model and HTTP Request.
How it runs
Trigger: On a schedule (cron 0 9 * * *) (plus 2 other triggers).
- Set Workflow Config (Edit Fields (Set)): sets 30 fields: ad_accounts, graph_version, default_slack_channel…
- Acknowledge Slack Within 3s (Respond to Webhook): sends the response back to the webhook caller
- Send Workflow Error Alert to Slack (Slack): uses Slack
- Is Scheduled Run? (If): checks a condition and branches into true / false
- Read Alert Log Sheet (Google Sheets): uses Google Sheets
- Parse Slack Button Payload (Code): runs custom JavaScript code
- Split Ad Accounts (Code): runs custom JavaScript code
- Route by Action Type (Switch): routes items into 5 branches
- Loop Over Ad Accounts (Loop Over Items (Split in Batches)): loops over the items in batches
- Pause Ad in Meta (HTTP Request): calls an HTTP API (POST)
…plus 36 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (18)
- Error Trigger
n8n-nodes-base.errorTrigger - Slack
n8n-nodes-base.slack - Schedule Trigger
n8n-nodes-base.scheduleTrigger - Webhook
n8n-nodes-base.webhook - Respond to Webhook
n8n-nodes-base.respondToWebhook - Edit Fields (Set)
n8n-nodes-base.set - If
n8n-nodes-base.if - Google Sheets
n8n-nodes-base.googleSheets - Code
n8n-nodes-base.code - Switch
n8n-nodes-base.switch - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - HTTP Request
n8n-nodes-base.httpRequest - Wait
n8n-nodes-base.wait - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - AI Agent
@n8n/n8n-nodes-langchain.agent - Http Request Tool
n8n-nodes-base.httpRequestTool - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Split Out
n8n-nodes-base.splitOut
From the author
Quick overview This workflow runs daily and pulls Meta Ads account and ad insights from the Meta Graph API, detects spend/performance anomalies and creative fatigue, uses OpenAI (gpt-4o-mini) to propose fixes for flagged accounts, and posts either an alert or…